At first I thought you ment Sagina subulata, but that's Corsican Pearlwort.
You're talking a bout Mentha requeinii, right? Both are tiny-leaved
"steppables".
Not sure if that's enough sun for a mint, though that might help slow down
its movement.

As to Pam's suggestion of Houttuynia , I'd think that would be taller than
you'd want (20-30cm - what's that in inches?) I've never seen it grow flat.

O.K. our guest house/bunk house has a side yard area where NOTHING
grows because of this HUGE tree. I have planted a few things but they
don't really survive. I put some paving stones on the "dirt" back
there and today I bought mint (yes..the plant that takes over the
world) to put there as a low ground cover between the paving stones.
It gets morning sun but after that...all shade. Think it will make
it?
--
Jesse R. Bell
---------------------------------------------------------------------
To sign-off this list, send email to majordomo@hort.net with the
message text UNSUBSCRIBE GARDENCHAT

13:35:00
---------------------------------------------------------------------
To sign-off this list, send email to majordomo@hort.net with the
message text UNSUBSCRIBE GARDENCHAT